Improvement in cultivators



Santa Rosa, in the county of Sonoma and Y in combined steam-cultivators and traction- 'onghly pulverizing and breaking up the soil,

tires, whereby I am able to adapt to the fellies stoodfrom the following description.

UNITED STATES OLIVER A. OLMSTED, OF SANTA ROSA, CALIFORNIA.

-IlvlPRovlawiEnr ln cuL'rlvAToRs.

Specification forming part of Letters Patent No.-dl9l,996,

dated June 12, 1877 application filed l Man-,11.14, 1877.

To allwhom it may concern:

Be it known that I, O. A. OLMSTED, of

State of California, have invented a newand valuable Improvement in Gultivators; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making` a part of this specification, and to the letters and figures of reference marked thereon.

Figure l of the drawings is a representation of aside view of my invention, and Fig. 2 is a top view thereof. y

This invention has relation -to improvements engines. Y y

The object ot' my invention ismainly to devise means for regulating the speedof the traction-wagon and thatof the cultivator, so that the latter may be drivelmimat great speed and the former carried over"` "lie ground at a slow rate in heavy, stiff lands, thereby thoror the reverse in light, loamy lands, and to prevent the track-wheels of the wagon from burying into the ground' in wet or bottom lands, or in sandy soils. Y

It consists in combining with the cogged traction-Wheels proper of a traction-wagon detachable interiorly-cogged fellies, engaging with the said wheels, and having removable a tire of a width suited to th the soil.

It also consists in certain other minor details of construction, as will be fully undere condition of In the annexed drawings, the letter A desi gv natos the. frame or body of myimproved traction wagon and cultivator, provided at its front end with an ordinary axle-tree, B', secured within the slotted front endof the central longitudinal beam a by a king-bolt, and provided with a spurred fifth-Wheel, b, that engages with a pinion, b', on the lower end of a vertical shaft, C, at the front of the frame. This shaft has on its upper end a hand-wheel, C', by means of which the wagon is steered.

The rear axle B has on each end a lanternwheel, c, that engages with a broad-tread track-wheel, D, having its teeth formed on a raised ring or ridge, c', between the anges of thesaid lantern-Wheel. The latter also meshes with a spurred pinion, d, rigidly secured upon a short shaft, D', having its inner bearings in one of the spaced uprights d1 ofthe frame, which pinion engages with a second pinion, d2, on a shaft, e, journaled in the frame side, the pinion d2 engaging also with the track-wheel aforesaid. This'latter is not applied upon a shaft, but secures its connection with the lantern-wheel and the upper pinion d2 through the engagement of their teeth with the said wheel, and the fitting of the raised ridge or rings c' between their flanges i. Shaft D' has rigidly secured thereon a clutch-head,'E, with which a Vsliding gear, E1, on the said shat't, forming the other head of the clutch, is caused to engage by means of a vibratory lever, E2, working in an annular groove on the hub of the said gear. Gears El are continually in engagement with pinions 15 on a shaft, E", having itsbearing in the upright-s d1, and provided with a large gear, F2, that engages with a smaller one, G, on a transverse drivingshaft, G1. This shaft has on one end a driving-pulley, G3, through which and suitable belts motion is communicated to it by a suitable engine, deriving its power from a steamboiler, H, upon the front end of the frame. The track-wheels D I will be provided with broad removable tires H', which will prevent the sinking ofthe said wheels into soft ground, and protect them from being injured by casual shocks in passing over rough or stony ground. The front axle B is likewise provided with lantern-wheels I, meshing with Vloose track- Wheels I', as above described,the said trackwheels being provided with the raised toothed ridge c', fitting between the flanges i of the lan tern-wheels.

,By introducing a pinion meshing with the track-wheels and lantern-wheels, and connecting it with the driving-shaft by a' suitable system of gearing, the lantern-Wheels l may be converted, like those of the rear axle, into driving-wheels. J represents a cylindrical roller, having a number of parallel sets of spaced teeth, f, and suspended at the rear end of the frame by metallic racks J'. The said that ts into the space roller is journaled in the lower ends of the racks, and provided at each end with a pinion, g, meshing with a gear-wheel, g1, at each end of a transverse shaft, g2, which is actuated by gears h upon a second shaft, K, engaging with the gears 'gl aforesaid to rotate the cylinder J.

Shaft K is provided upon one end with a driving-gear, j, that is actuated by an independent engine at its side of the frame through power derived from the steam-boiler H aforesaid. The journals of the cylinder are connected to the ends of shaft g2 by means of links L, so that, when the said cylinder is raised or lowered to lessen or increase the penetration of its teeth into the soil, it will at any position have its pinions engaged with the gears g1, and will be effectually actuated. The vracks J aforesaid extend up through slots formed .in the upper part of the frame, and engage with pinions M, applied, one at each end, upon a shaft, N. This shaft is rotated to adjust the cultivator-cylinder by means of a hand-wheel, O, keyed upon it, and by a sufficient rotation of said wheel the roller may be raised clear of the ground, and the wagon driven from place to place without obstruction therefrom.

The shaft N is prevented from casual rotation by means of a spring-pawl, P, secured at one end to the frame, and engaging with the other directly with the hand-wheel, as shown in the drawings, or with a ratchetwheel keyed on said shaft or secured to the hand-wheel. The Wagon being driven by an independent engine, a's is also the cultivator, I am able to regulate the speed of one or both according to the nature of the soil. Thus, in stiff clayey ground, where the clods are difficult to break up, the wagon may be run at a slow rate and the roller at a very high rate of speed, subjecting the surface to be harrowed to reiterated strokes of the teeth, and thereby eflectually breaking up the clods. In light sandy or loamy soil the wagon may be run at a rapid rate, as well as the roller, and yet e'ectually break up the clods or the rotation of the roller may be lessened, according to the nature of the soil.

Whatv I claim as new, and desire to secure by Letters Patent, is-

1. The track-wheels D I', composed of the internally-toothed rings c', having removable tires H' of broader tread than said rings, the edges of the said tire extending ont beyond the adjacent edges of the rings, substantially as specified.

2. rIhe track-Wheel D, having a raised toothed ring, o', in combination with the lantern-wheels c d2, the driven pinion d, its shaft D1, the clutch-pinion E', pinions F F, and gearwheel F2, the driving-pinion G, and driven shaft G', substantially as specified.

3. The rotary cultivator-cylinder J, journaled in the lower ends of the vertical guided racks J', in combination with the pinions m, engaging said racks, a hand-wheel, O, and shaft N, operating said wheel, and a springpawl, l?, holding said pinion against backward rotation, substantially as speciiied.

In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.

OLIVER AUSTIN OLMS'IED.

Witnesses:

JOHN BROWN, W. H. MEAD. 

